CVE-2018-12666
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only...
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only by the authentication level sent in the cookies, which allow remote attackers to bypass authentication and gain administrator access by setting the authLevel cookie to 255.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only by the authentication level sent in the cookies, which allow remote attackers to bypass authentication and gain administrator access by setting the authLevel cookie to 255.
- Record
CVE-2018-12666- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-287
- Updated
- 2026-11-02
CVE List No score
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only by the authentication level sent in the cookies, which allow remote attackers to bypass authentication and gain administrator access by setting the authLevel cookie to 255.
- Record
CVE-2018-12666- Updated
- 2026-11-02
EUVDEUVD-2018-4621 No score
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only by the authentication level sent in the cookies, which allow remote attackers to bypass authentication and gain administrator access by setting the authLevel cookie to 255.
- Record
EUVD-2018-4621- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c7cc-j2gp-895v
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only...
SV3C L-SERIES HD CAMERA V2.3.4.2103-S50-NTD-B20170508B devices improperly identifies users only by the authentication level sent in the cookies, which allow remote attackers to bypass authentication and gain administrator access by setting the authLevel cookie to 255.
- Record
GHSA-c7cc-j2gp-895v- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-287
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-12666 is a critical vulnerability (CVSS 9.8) in Sv3c H.264 Poe Ip Camera Firmware, published October 19, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.82%, the 78th percentile. No source names a fixed version.